focus - the point where rocks under pressure breaks, making an earthquake epicenter - the place right above the focus seismic waves - vibration that travel through the Earth, with energy that is directly above the focus primary waves - earthquake waves that expand and close together like a spring toy secondary waves - earthquake waves that goes up and down surface waves - surface travels more slowly, but the damage is greater seismograph - records how hard the earthquake shakes magnitude - a measurement for earthquakes Mercalli scale - a device to measure earthquake with it's intention Richter scale - a measurement of size seismic waves Moment Magnitude scale - used to measure earthquakes no matter how hard it is
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Notes 2.2
focus - the point where rocks under pressure breaks, making an earthquake
epicenter - the place right above the focus
seismic waves - vibration that travel through the Earth, with energy that is directly above the focus
primary waves - earthquake waves that expand and close together like a spring toy
secondary waves - earthquake waves that goes up and down
surface waves - surface travels more slowly, but the damage is greater
seismograph - records how hard the earthquake shakes
magnitude - a measurement for earthquakes
Mercalli scale - a device to measure earthquake with it's intention
Richter scale - a measurement of size seismic waves
Moment Magnitude scale - used to measure earthquakes no matter how hard it is
Outline
Seismic Waves
Detecting Seismic Waves
Measuring Earthquakes
Locating The Epicenter